diff mbox series

[v2,2/4] dt-bindings: media: add Maxim MAX96717F GMSL2 Serializer

Message ID 20231208143359.469049-3-julien.massot@collabora.com (mailing list archive)
State New, archived
Headers show
Series Add support for MAX96714F and MAX96717F GMSL2 ser/des | expand

Commit Message

Julien Massot Dec. 8, 2023, 2:33 p.m. UTC
Add DT bindings for Maxim MAX96717F GMSL2 Serializer.

Signed-off-by: Julien Massot <julien.massot@collabora.com>
---
 .../bindings/media/i2c/maxim,max96717f.yaml   | 144 ++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml

Comments

Rob Herring Dec. 8, 2023, 3:29 p.m. UTC | #1
On Fri, 08 Dec 2023 15:33:57 +0100, Julien Massot wrote:
> Add DT bindings for Maxim MAX96717F GMSL2 Serializer.
> 
> Signed-off-by: Julien Massot <julien.massot@collabora.com>
> ---
>  .../bindings/media/i2c/maxim,max96717f.yaml   | 144 ++++++++++++++++++
>  1 file changed, 144 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/i2c/maxim,max96717f.example.dtb: vd5661@10: port:endpoint:data-lanes:0: [1, 2] is too short
	from schema $id: http://devicetree.org/schemas/media/i2c/st,st-vgxy61.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20231208143359.469049-3-julien.massot@collabora.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
Krzysztof Kozlowski Dec. 8, 2023, 5:17 p.m. UTC | #2
On 08/12/2023 15:33, Julien Massot wrote:
> Add DT bindings for Maxim MAX96717F GMSL2 Serializer.
> 
> Signed-off-by: Julien Massot <julien.massot@collabora.com>
> ---
>  .../bindings/media/i2c/maxim,max96717f.yaml   | 144 ++++++++++++++++++
>  1 file changed, 144 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml
> 

...

> +
> +  reg:
> +    description: I2C device address

drop description

> +    maxItems: 1
> +

...

> +
> +            i2c-gate {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +                vd5661@10 {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation



Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml
new file mode 100644
index 000000000000..ae649c3041a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml
@@ -0,0 +1,144 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2023 Collabora Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/maxim,max96717f.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GMSL2 to CSI-2 Serializer
+
+maintainers:
+  - Julien Massot <julien.massot@collabora.com>
+
+description: |
+  The MAX96717F serializer converts MIPI CSI-2 D-PHY or C-PHY formatted input
+  into GMSL2 serial outputs. The device allows the GMSL2 link to
+  simultaneously transmit bidirectional control-channel data while forward
+  video transmissions are in progress. The MAX96717F can connect to one
+  remotely located deserializer using industry-standard coax or STP
+  interconnects. The device cans operate in pixel or tunnel mode. In pixel mode
+  the MAX96717F can select the MIPI datatype, while the tunnel mode forward all the MIPI
+  data received by the serializer.
+  The MAX96717F supports Reference Over Reverse (channel),
+  to generate a clock output for the sensor from the GMSL reverse channel.
+
+  The GMSL2 serial link operates at a fixed rate of 3Gbps in the
+  forward direction and 187.5Mbps in the reverse direction.
+
+properties:
+  compatible:
+    const: maxim,max96717f
+
+  '#gpio-cells':
+    const: 2
+    description:
+      First cell is the GPIO pin number, second cell is the flags. The GPIO pin
+      number must be in range of [0, 10].
+
+  gpio-controller: true
+
+  '#clock-cells':
+    const: 0
+
+  reg:
+    description: I2C device address
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: CSI-2 Input port
+
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            required:
+              - data-lanes
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        unevaluatedProperties: false
+        description: GMSL Output port
+
+    required:
+      - port@1
+
+  i2c-gate:
+    $ref: /schemas/i2c/i2c-controller.yaml
+    unevaluatedProperties: false
+    description: |
+      The MAX96717F will pass through and forward the I2C requests from the
+      incoming GMSL2 link. Therefore it supports an i2c-gate
+      subnode to configure a sensor.
+
+required:
+  - compatible
+  - reg
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/media/video-interfaces.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        serializer: serializer@40 {
+            compatible = "maxim,max96717f";
+            reg = <0x40>;
+            gpio-controller;
+            #gpio-cells = <2>;
+            #clock-cells = <0>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    max96717f_csi_in: endpoint {
+                        data-lanes = <1 2>;
+                        lane-polarities = <1 0 1>;
+                        remote-endpoint = <&vd5661_csi>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+                    max96917f_gmsl_out: endpoint {
+                        remote-endpoint = <&max96714_gmsl_in>;
+                    };
+                };
+            };
+
+            i2c-gate {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                vd5661@10 {
+                    compatible = "st,st-vgxy61";
+                    reg = <0x10>;
+                    reset-gpios = <&serializer 0 GPIO_ACTIVE_LOW>;
+                    clocks = <&serializer>;
+                    VCORE-supply = <&v1v2>;
+                    VDDIO-supply = <&v1v8>;
+                    VANA-supply = <&v2v8>;
+                    port {
+                        vd5661_csi: endpoint {
+                            data-lanes = <1 2>;
+                            remote-endpoint = <&max96717f_csi_in>;
+                        };
+                    };
+                };
+            };
+        };
+    };
+...